Analytic expressions for quasinormal modes and grey-body factors in the eikonal limit and beyond

RA Konoplya, A Zhidenko - Classical and Quantum Gravity, 2023‏ - iopscience.iop.org
Although the WKB series converges only asymptotically and guarantees the exact result
solely in the eikonal regime, we have managed to derive concise analytical expressions for …

Greybody factors, quasi-normal modes and thermal fluctuations of quantum-corrected Schwarzschild black hole surrounded by quintessence

G Fatima, S Shaukat, F Javed, G Mustafa - Physics of the Dark Universe, 2024‏ - Elsevier
In this study, we examine the effects of a quintessence field-enclosed Schwarzschild black
hole that has undergone quantum corrections on a number of different physical phenomena …

Exploring non-commutativity as a perturbation in the Schwarzschild black hole: quasinormal modes, scattering, and shadows

N Heidari, H Hassanabadi, AAA Filho, J Kriz - The European Physical …, 2024‏ - Springer
In this work, by a novel approach to studying the scattering of a Schwarzschild black hole,
the non-commutativity is introduced as perturbation. We begin by reformulating the Klein …

[HTML][HTML] Shadow and greybody bounding of a regular scale-dependent black hole solution

A Övgün, RC Pantig, Á Rincón - Annals of Physics, 2024‏ - Elsevier
In this manuscript, we explore the shadow and the greybody bounding characteristics of a
regular black hole within 4-dimensional space–time, employing the context of gravity that is …

Quasinormal modes-shadow correspondence for rotating regular black holes

D Pedrotti, S Vagnozzi - Physical Review D, 2024‏ - APS
Eikonal quasinormal modes (QNMs) of black holes (BHs) and parameters of null geodesics,
ultimately tied to the appearance of BHs to external observers, are known to be related, and …

Greybody factor of uncharged black hole in symmetric teleparallel gravity

F Javed, S Mumtaz, A Raza, B Almutairi… - Physics of the Dark …, 2024‏ - Elsevier
In this study, we investigate the greybody factor of a (3+ 1)-dimensional black hole solution
in the context of alternative f (Q) gravity with minimum scalar field coupling. We obtain the …

Effects of non-commutative geometry on black hole properties

AA Araújo Filho, JR Nascimento, AY Petrov… - Physics of the Dark …, 2024‏ - Elsevier
In this study, we investigate the signatures of a non-commutative black hole solution. Initially,
we calculate the thermodynamic properties of the system, including entropy, heat capacity …

Constraints on quasinormal modes from black hole shadows in regular non-minimal Einstein Yang–Mills gravity

DJ Gogoi, S Ponglertsakul - The European Physical Journal C, 2024‏ - Springer
This work deals with scalar quasinormal modes using the higher-order WKB method and
black hole shadow in non-minimal Einstein–Yang–Mills theory. To validate the results of …

Klein–Gordon equation and geodesic behavior in quantum-corrected charged black holes with quintessence

F Javed, S Shaukat, A Waseem, G Mustafa… - Physics of the Dark …, 2024‏ - Elsevier
The current study deals with the greybody factor, radial geodesics, and tidal force
phenomenon for quantum-corrected charged Schwarzschild black hole surrounded by …

Corrected thermodynamics and stability of magnetic charged AdS black holes surrounded by quintessence

DJ Gogoi, Y Sekhmani, S Bora… - … of Cosmology and …, 2024‏ - iopscience.iop.org
In this study, we explore the corrected thermodynamics of non-linear magnetic charged anti-
de Sitter (AdS) black holes surrounded by quintessence, incorporating thermal fluctuations …